Game Rules, Puzzle Modes, and Competitive Systems Explained

To fully enjoy Sudoku - Classic Sudoku Puzzle, understanding its rules and structured game modes is essential. The app follows international Sudoku standards while expanding gameplay through multiple challenge formats.

At the core, every puzzle follows the classic rule: each number or symbol must appear only once in every row, column, and subgrid. This fundamental principle applies to all grid sizes and modes, ensuring logical consistency.

The app offers multiple difficulty levels, ranging from Easy and Medium to Hard and Expert. Difficulty is determined by the number of pre-filled cells, logical complexity, and required solving techniques.

In addition to standard puzzles, several special modes are available. Killer Sudoku introduces cage-based sum constraints, requiring numerical calculation alongside logic. Ice Sudoku adds frozen cells that unlock through specific actions, increasing strategic depth.

Tower Climb Mode challenges players to complete consecutive levels without interruption, testing endurance and accuracy. Jigsaw Collection Challenge combines puzzle solving with visual rewards, enhancing motivation.

Fun Tile Mode replaces numbers with picture tiles, creating a more visual and accessible experience for casual users and younger players.

Competitive features include real-time multiplayer battles and global tournament rankings. Players can compare performance, earn achievements, and participate in seasonal events.

A built-in leaderboard system tracks progress across different modes and difficulty levels. Rankings are updated regularly to reflect consistent skill development.

Through its integrated rule system and diverse gameplay formats, Sudoku - Classic Sudoku Puzzle offers both traditional logic practice and modern interactive competition.